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7 Expansion to multiple Slaves

7.2 Expansion to multiple slaves with S7-1500

Table 7-4: Port expansion for S7-1500

No.

SINAMICS V20 at S7-1200/1500 via USS

Entry ID: 109480894,

V1.0,

Installing and wiring new hardware

As shown in Figure 5-2, add the drives to your configuration that are to

communicate with the controller via the new, additional port.

Add a new CM PtP RS422/485 communication module to the SIMATIC S7-1500

station.

Physically establish the USS bus connection between the drives and the new

port.

Parameterizing new drives using the BOP

Follow no. 1 to 10 of Table 4-1 to parameterize the added inverters using the

built-in BOP. From "1" onward, the drive addresses have to be assigned

continuously.

Device configuration in TIA Portal

In the device configuration, copy the existing communication module (1) and

paste it directly to the right of it (2).

Program extension in TIA Portal

In the project tree, copy the code blocks ...



Cyclic_interrupt



UssCyclic

The copies are automatically created with index _1:



Cyclic_interrupt_1



UssCyclic_1

The name of the copied blocks can be changed in the block properties.

Open the Main OB (OB1). Now drag the copied block, UssCyclic_1, to a network

and supply it with a new instance data block.

09/2018

Instruction